Advanced IP Scanner

Just downloaded Advanced IP Scanner. I really like it.
Is it possible to change a device IP?   What about making an IP static?
If not can anyone recommend a simple program?

I have T Mobile internet.  It is very limited to what you can do.  Can't even see the devices on the internet.

I added a router and that solved the problem but it had a different IP address and it just screwed up the network at times.
I finally just removed the router and went to a switch. That performed well but I can't change IP  or make dedicated ips.

I´m
using Advanced IP Scanner for several years under Windows 7 and Windows 10. I
could scan remote networks over a VPN connection. This has changed with Windows
11. When I scan a remote network connected via VPN, I only see the remote
Gateway but nothing else. The same network scan runs fine under Windows 10. Has
someone seen the same problem?

my desktop is showing two different IPs, macs and mfg name after scan.  Why is this pls?

on my list of IP addressess, within one of them is, HTTPS, tunnel is ssl:lighttpd. what does that mean, because the IP address will not open

I got a prompt to update and so I did. Now the app crashes.

Event viewer shows:
Windows cannot access the file  for one of the following reasons: there is a problem with the network connection, the disk that the file is stored on, or the storage drivers installed on this computer; or the disk is missing. Windows closed the program Advanced IP Scanner because of this error.

Crash shows:
Faulting application name: advanced_ip_scanner.exe, version: 2.5.4594.1, time stamp: 0x62679bd2
Faulting module name: Qt5Gui.dll, version: 5.6.3.0, time stamp: 0x5e25e3d0
Exception code: 0xc000001d

I've uninstalled, removed folder in programdata and reg keys in HKCU and same.

Any ideas?

I NEED HELP, MY IP SCANNER FINDS 253 RESULTS AND ONLY ONE OF MY ROUTER..